158382225 has 27 divisors (see below), whose sum is σ = 284018683. Its totient is φ = 84369840.

The previous prime is 158382223. The next prime is 158382247. The reversal of 158382225 is 522283851.

The square root of 158382225 is 12585.

It is a perfect power (a square), and thus also a powerful number.

158382225 is a `hidden beast` number, since 1 + 58 + 382 + 225 = 666.

It can be written as a sum of positive squares in only one way, i.e., 57017601 + 101364624 = 7551^2 + 10068^2 .

It is not a de Polignac number, because 158382225 - 2¹ = 158382223 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 158382225.

It is not an unprimeable number, because it can be changed into a prime (158382223) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 188356 + ... + 189194.

Almost surely, 2^158382225 is an apocalyptic number.

158382225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

158382225 is the 12585-th square number.

158382225 is the 6293-rd centered octagonal number.

It is an amenable number.

158382225 is a deficient number, since it is larger than the sum of its proper divisors (125636458).

158382225 is an frugal number, since it uses more digits than its factorization.

158382225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694 (or 847 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The cubic root of 158382225 is about 541.0476062352.

Multiplying 158382225 by its sum of digits (36), we get a square (5701760100 = 75510²).

The spelling of 158382225 in words is "one hundred fifty-eight million, three hundred eighty-two thousand, two hundred twenty-five".